and underlying neurobiology of conditioned drug effects in humans. Methamphetamine was selected because of its relative fast onset. The dose used (20 mg oral; Desoxyn, Lundbeck) is safe and ...

Scientists have for the first time selectively blocked a conditioned fear memory in humans with a behavioral ... confirmed that they experienced a fear response. Extinction training - repeated ...

a process in which a conditioned response from stimuli gradually diminishes over time. "Although the memory-enhancing effects of methylene blue were shown in rodents in the 1970s, the underlying ...

Humans and chimpanzees recently evolved a more active fight-or-flight response compared to other primates, possibly in response to the threat of warfare. Humans and chimpanzees recently evolved a ...